HashMap with weak values

Question

I\'m implementing a cache for Objects stored persistently. The idea is:

• Method getObjectFromPersistence(long id); ///Takes about 3 seconds
• M

Answer 1

You can also test WeakValueHashMap from jboss-common http://docs.jboss.org/jbossas/javadoc/4.0.2/org/jboss/util/collection/WeakValueHashMap.java.html